I've got the best of both worlds in a way. I'm part of a team of 2 but we support two schools. I spend much of my time, on my own, at one school and my colleague spends most of his time on his own at the other school. However we talk over Email, Messenger and we talk on the phone several times a day helping each other out with various things. We also meet up when needed to work together on projects. I like being on my own, being able to get on with my work etc.. but it's also nice to be able to meet up with someone in the same boat and plan/ chat and have a laugh.
It's also good that we get on so well with the premises teams at both schools so there is the banter etc.. with them too.